[填空题]The______refers to the average number of children women will bear in their lifetime.

[单项选择]With the average number of children in a British family falling beneath 2.0, the population of the UK has been falling for quite a few years. The size of the British workforce(劳动力)is becoming smaller and the average age of the workforce is rising. This trend is quite worrying for the British economy.
Why aren’t the British having as many children as they used to Well, there is a whole range of reasons. One of them is that British people are now having at a much older age than before, meaning they have fewer years in which they can have chidren. After years of study at university, they then need a few years of work experience before they can get the job they want. They might then get married, but it’s very expensive to buy a house in the UK.
The above also explains why British young people now don’t move out of their parents’ home until they are around 30 years old on average.It is not until they are 30 that they can afford to get married and start a new life in a new home. It
A. the size of the workforce is becoming larger
B. the population of the UK has been on the rise
C. the workers of the UK are much younger than before
D. the average number of children in British family is falling

[填空题]

The average children number in British family is ______.

[单项选择]What is the average of four consecutive odd numbers starting with 2n+1
A. 4
B. 2n+3
C. 2n+4
D. 2n+5 E. n+4

[单项选择]The average (arithmetic mean) number of trees per acre in a 40-acre plot is 140. If a 10-acre section of the plot contains 90 trees per acre, how many trees are there in the remaining 30 acres
A. 5,700
B. 4,700
C. 4,200
D. 3,600
E. 2,700

[多项选择]The chart shows the number of days the average employee has off work per year in four different countries.
Summarise the information by selecting and reporting the main features and by making comparisons where relevant.
Write at least 150 words.

Country	Public holidays	Annual leave	Total days off
USA	10	12	22
Japan	查看答案 [填空题]The number of children included in the study. 查看答案 [单项选择]The average (arithmetic mean) of five number is 26. After one of the numbers is removed, the average (arithmetic mean) of the remaining numbers is 25. What number has been removed ？（） A. 20 B. 25 C. 26 D. 30 E. 32 查看答案 [单项选择]There was a (number) of children on the playground. A. class B. great crowd C. small group D. line 查看答案 [单项选择]The number of children（　）from 1 to 15 in different families. A. varies     B. seems   C. changes    D. turns 查看答案 [填空题]The children 查看答案 [填空题]What did children come to her for Children came to her for ______. 查看答案 [单项选择]The average of x and y is 16 and the average of x, y, and z is 22. What is the value of z A. 16 B. 22 C. 34 D. 45 E. 66 查看答案 我来回答: 提交 最新试题 ●    [多选题]下列关于依托第三方身份识别的表述中哪些是正确的? ●    [判断题]管道安全阀的选用，可按管道最大压力来选择安全阀的最大排量。 ●    [单选题][单选]违反《建设工程安全生产管理条例》的规定,出租单位出租未经安全性能检测或者经检测不合 ●    [判断题] 公安机关及其人民警察在办理治安案件时,对涉及的国家秘密、商业秘密或者个人隐私,应当停止调 ●    [单选题]( )涉及面广,专业性强,它贯穿于从接警调度开始,至灭火救援战斗结束全过程。 ●    [单选题]以下关于盘、柜安装的说法错误的是()。 网站地图 我要搜题网  版权所有  ©2024  湘ICP备18016427号   购买搜题卡查看答案 [会员特权] 开通VIP， 查看 全部题目答案 [会员特权] 享免全部广告特权 推荐91天 ¥36.8 ￥80元 31天 ¥20.8 ￥40元 365天 ¥88.8 ￥188元 请选择支付方式 微信支付 支付宝支付 点击支付即表示同意并接受了《购买须知》 立即支付 系统将自动为您注册账号 已有账号登录 找回账号密码 请使用微信扫码支付 订单号： 截图扫码使用小程序[完全免费查看答案] 前往小程序 请不要关闭本页面，支付完成后请点击【支付完成】按钮 支付完成 取消支付 恭喜您，购买搜题卡成功 系统为您生成的账号密码如下： 账号 密码 重要提示：请拍照或截图保存账号密码！ 我要搜题网官网：https://www.woyaosouti.com 我已记住账号密码